JPS5693148A - Method of measuring read*write position with respect to reference position of data carrier* and device for performing same method - Google Patents
Method of measuring read*write position with respect to reference position of data carrier* and device for performing same methodInfo
- Publication number
- JPS5693148A JPS5693148A JP16093780A JP16093780A JPS5693148A JP S5693148 A JPS5693148 A JP S5693148A JP 16093780 A JP16093780 A JP 16093780A JP 16093780 A JP16093780 A JP 16093780A JP S5693148 A JPS5693148 A JP S5693148A
- Authority
- JP
- Japan
- Prior art keywords
- respect
- data carrier
- reference position
- performing same
- same method
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
- G11B5/58—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B5/596—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on disks
- G11B5/59633—Servo formatting
- G11B5/59655—Sector, sample or burst servo format
Landscapes
- Moving Of The Head To Find And Align With The Track (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7928421A FR2470425A1 (en) | 1979-11-19 | 1979-11-19 | METHOD FOR MEASURING THE POSITION OF A READ-WRITE HEAD OF INFORMATION OF A MEDIUM IN RELATION TO A REFERENCE POSITION THEREOF AND DEVICE FOR IMPLEMENTING IT |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5693148A true JPS5693148A (en) | 1981-07-28 |
JPS6232551B2 JPS6232551B2 (en) | 1987-07-15 |
Family
ID=9231817
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16093780A Granted JPS5693148A (en) | 1979-11-19 | 1980-11-17 | Method of measuring read*write position with respect to reference position of data carrier* and device for performing same method |
Country Status (8)
Country | Link |
---|---|
US (1) | US4400746A (en) |
JP (1) | JPS5693148A (en) |
DE (1) | DE3043650A1 (en) |
FR (1) | FR2470425A1 (en) |
GB (1) | GB2065335B (en) |
IT (1) | IT1193992B (en) |
NL (1) | NL8004180A (en) |
SE (1) | SE450606B (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1983001859A1 (en) * | 1981-11-16 | 1983-05-26 | Dma Systems Corp | Track identification code recording method |
FR2557722B1 (en) * | 1983-12-30 | 1986-04-11 | Bull Sa | METHOD FOR WRITING INFORMATION ON A RECORDING MEDIUM |
US4608618A (en) * | 1984-10-25 | 1986-08-26 | Verbatim Corporation | Digital alignment diagnostic disk |
FR2593633B1 (en) * | 1986-01-27 | 1988-04-29 | Sagem | METHOD FOR WRITING AND READING A MAGNETIC TRACK, PARTICULARLY FOR THE POSITIONAL CONTROL OF MAGNETIC HEADS; MAGNETIC SUPPORT COMPRISING AT LEAST ONE SUCH TRACK; METHOD FOR POSITIONALLY CONTROLLING MAGNETIC HEADS USING SUCH TRACKS |
FR2615995A1 (en) * | 1987-05-27 | 1988-12-02 | Bull Sa | INFORMATION WRITING MODE ON A MAGNETIC RECORDING MEDIUM |
US5341255A (en) * | 1990-10-17 | 1994-08-23 | Seagate Technology, Inc. | Disc drive head positioning servo system with coherent adjacent track magnetic patterns |
JP1677395S (en) | 2020-05-22 | 2021-01-25 | ||
JP1686932S (en) | 2020-05-22 | 2021-05-31 | ||
JP1686862S (en) | 2020-05-22 | 2021-05-31 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3479664A (en) * | 1965-12-28 | 1969-11-18 | Data Products Corp | Servo positioning system |
US3534344A (en) * | 1967-12-21 | 1970-10-13 | Ibm | Method and apparatus for recording and detecting information |
US3609562A (en) * | 1970-07-17 | 1971-09-28 | Ibm | Synchronized demodulator |
FR2346806A1 (en) * | 1976-03-31 | 1977-10-28 | Honeywell Bull Soc Ind | MODE OF WRITING ADDRESS ON MAGNETIC RECORDING MEDIUM |
FR2365178A1 (en) * | 1976-09-20 | 1978-04-14 | Cii Honeywell Bull | METHOD OF READING ADDRESSES ON A MAGNETIC RECORDING MEDIA AND DEVICE FOR IMPLEMENTING IT |
US4101942A (en) * | 1976-10-15 | 1978-07-18 | Xerox Corporation | Track following servo system and track following code |
US4130844A (en) * | 1976-10-26 | 1978-12-19 | Xerox Corporation | Method and means for tracking magnetic tracks |
US4208679A (en) * | 1978-02-28 | 1980-06-17 | Digital Equipment Corporation | Transducer positioning system for rotating disk drive units |
JPS54119215A (en) * | 1978-03-09 | 1979-09-17 | Toshiba Corp | Magnetic disc apparatus |
FR2439435A1 (en) * | 1978-10-19 | 1980-05-16 | Cii Honeywell Bull | WAY OF WRITING INFORMATION ON A MAGNETIC RECORDING MEDIUM |
-
1979
- 1979-11-19 FR FR7928421A patent/FR2470425A1/en active Granted
-
1980
- 1980-07-21 NL NL8004180A patent/NL8004180A/en not_active Application Discontinuation
- 1980-09-19 SE SE8006591A patent/SE450606B/en not_active IP Right Cessation
- 1980-10-22 GB GB8034074A patent/GB2065335B/en not_active Expired
- 1980-11-10 US US06/205,863 patent/US4400746A/en not_active Expired - Lifetime
- 1980-11-11 IT IT25876/80A patent/IT1193992B/en active
- 1980-11-17 JP JP16093780A patent/JPS5693148A/en active Granted
- 1980-11-19 DE DE19803043650 patent/DE3043650A1/en active Granted
Also Published As
Publication number | Publication date |
---|---|
IT8025876A0 (en) | 1980-11-11 |
SE8006591L (en) | 1981-05-20 |
DE3043650C2 (en) | 1988-08-18 |
IT1193992B (en) | 1988-08-31 |
GB2065335B (en) | 1983-09-01 |
DE3043650A1 (en) | 1981-09-17 |
FR2470425A1 (en) | 1981-05-29 |
GB2065335A (en) | 1981-06-24 |
JPS6232551B2 (en) | 1987-07-15 |
US4400746A (en) | 1983-08-23 |
NL8004180A (en) | 1981-06-16 |
FR2470425B1 (en) | 1983-08-26 |
SE450606B (en) | 1987-07-06 |
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